MiracleLED 604984, Replaces 100W Light 9' -20' Ceilings, 12W White 36-Pack Max Cool Bulb U. L. Certified safe 20,000+ estimated life hours Huge energy saver -- MiracleLED technology allows a 12W bulb to replace old 100W 130V incandescent bulbs. Save up to $85/yr Bulb replaces 99% of all household bulbs Vibration resistant,tough Rough service bulb that turns on instantly even in Winter